Underneath Transaction details you will see the item details. The item details section will display a breakdown of the items that make up a particular transaction. If you have entered an item name, either by selecting it from the product catalogue or by manually entering it on the Custom Sale screen, this will be displayed here. If no item name has been entered the item details section will show item 1, item 2 etc. The quantity of each item is also displayed along with the subtotal for each item.